Nitrogen deposition is the most important environmental driver of growth of pure, even-aged and managed European forests
Artikel i vetenskaplig tidskrift, 2020

Changing environmental conditions may substantially interact with site quality and forest stand characteristics, and impact forest growth and carbon sequestration. Understanding the impact of the various drivers of forest growth is therefore critical to predict how forest ecosystems can respond to climate change. We conducted a continental-scale analysis of recent (1995–2010) forest volume increment data (ΔVol, m3 ha−1 yr−1), obtained from ca. 100,000 coniferous and broadleaved trees in 442 even-aged, single-species stands across 23 European countries. We used multivariate statistical approaches, such as mixed effects models and structural equation modelling to investigate how European forest growth respond to changes in 11 predictors, including stand characteristics, climate conditions, air and site quality, as well as their interactions. We found that, despite the large environmental gradients encompassed by the forests examined, stand density and age were key drivers of forest growth. We further detected a positive, in some cases non-linear effect of N deposition, most pronounced for beech forests, with a tipping point at ca. 30 kg N ha−1 yr−1. With the exception of a consistent temperature signal on Norway spruce, climate-related predictors and ground-level ozone showed much less generalized relationships with ΔVol. Our results show that, together with the driving forces exerted by stand density and age, N deposition is at least as important as climate to modulate forest growth at continental scale in Europe, with a potential negative effect at sites with high N deposition.

Ozone

Statistical modelling

Observational study

Air pollution

Forest management

ICP Forests

Climate change

Författare

Sophia Etzold

Eidgenossische Forschungsanstalt fur Wald, Schnee Und Landschaft Eth-Bereichs

Marco Ferretti

Eidgenossische Forschungsanstalt fur Wald, Schnee Und Landschaft Eth-Bereichs

G. J. Reinds

Wageningen University and Research

Svein Solberg

Norsk institutt for bioøkonomi (NIBIO)

Arthur Gessler

Eidgenossische Forschungsanstalt fur Wald, Schnee Und Landschaft Eth-Bereichs

Peter Waldner

Eidgenossische Forschungsanstalt fur Wald, Schnee Und Landschaft Eth-Bereichs

Marcus Schaub

Eidgenossische Forschungsanstalt fur Wald, Schnee Und Landschaft Eth-Bereichs

David Simpson

Meteorologisk institutt

Chalmers, Rymd-, geo- och miljövetenskap, Mikrovågs- och optisk fjärranalys

Sue Benham

Forest Research (UK)

Karin Hansen

IVL Svenska Miljöinstitutet

Naturvårdsverket

Morten Ingerslev

Köpenhamns universitet

Mathieu Jonard

Universite catholique de Louvain

Per Erik Karlsson

IVL Svenska Miljöinstitutet

Antti Jussi Lindroos

Natural Resources Institute Finland (Luke)

Aldo Marchetto

Consiglo Nazionale Delle Richerche

Miklos Manninger

Forest Research Institute

Henning Meesenburg

Northwest German Forest Research Institute (NW-FVA)

P Merilä

Natural Resources Institute Finland (Luke)

Pekka Nöjd

Natural Resources Institute Finland (Luke)

Pasi Rautio

Natural Resources Institute Finland (Luke)

Tanja G.M. Sanders

Thünen Institute of Forest Ecosystems

Walter Seidling

Thünen Institute of Forest Ecosystems

Mitja Skudnik

Slovenian Forestry Institute

Anne Thimonier

Eidgenossische Forschungsanstalt fur Wald, Schnee Und Landschaft Eth-Bereichs

Arne Verstraeten

Research Institute for Nature and Forest, Brussels

Lars Vesterdal

Köpenhamns universitet

Monika Vejpustkova

Forestry and Game Management Research Institute

W. de Vries

Wageningen University and Research

Forest Ecology and Management

0378-1127 (ISSN)

Vol. 458 117762

Ämneskategorier

Skogsvetenskap

Naturgeografi

Klimatforskning

DOI

10.1016/j.foreco.2019.117762

Mer information

Senast uppdaterat

2020-02-14